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TPS40428RHAR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS40428RHAR Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 92 page  PWM1 ISH1 CS1P PWM2 ISH2 CS2P CS1N FB1 COMP1 PMBDATA PMBCLK SMBALERT ADDR0 ADDR1 GND VSNS1 GSNS1 DIFFO1 { Remote SNS to VOUT1 PG1 CNTL1 SYNC PHSET { PMBus Interface VIN SW GND PWM VSNS2 GSNS2 PG2 CNTL2 RT FB2 COMP2 GND AGND TSNS1 CS2N GND VOUT2 VOUT1 VOUT2 TSNS2 VDD BP3 TAO IOUT REFIN GND GND VIN BP5 TPS40428 FLT1 GND FLT2 Smart Power Stage VIN PGND VIN SW GND PWM IOUT REFIN TAO Smart Power Stage AVSDATA AVSCLK High-Speed AVSBUS } Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS40428 SLUSBV0A – MAY 2014 – REVISED JULY 2014 TPS40428 Dual Output, 2-Phase, Stackable PMBus™ Synchronous Buck Driverless Controller with Adaptive Voltage Scaling (AVS) Bus 1 Features 3 Description The TPS40428 device is a PMBus, synchronous 1 • Smart Power Mode in Factory Default (Compatible buck, driverless controller. It operates in smart power with TI Smart Power Stage CSD95378B and Pin- mode with factory default settings, and it can operate for-Pin Equivalent to TPS40425 – Non-Smart in non-smart power mode after PMBus programing Power Mode in Factory Default) and power reboot. It can be configured for dual- • Single Supply Operation: 4.5 V to 20 V output or 2-phase operation. It is also stackable up to 4 phases to support load current as high as 120 A. • VOUT from 0.6 V Interleaved phase shift for 2-. 3-, or 4-phases reduce • Dual or Multi-Phase Synchronous Buck Controller the input and output ripples therefore reducing input • Individual High-Speed AVS Interface and output capacitance. • Fast Transient Response The wide input voltage range can support 5-V and • Stackable up to Four Phases 12-V intermediate supply buses. The 0.5% reference voltage satisfies the need of precision voltage to the – 2-, 3-, or 4-Phase Interleaved Phase Shifts modern ASICs. – Accurate Current Sharing Using the PMBus standard, the TPS40428 device • PMBus Interface Capability can program reference voltage, fault limit, UVLO – Margining Up/Down with 2-mV Step threshold, soft-start time and turn-on and turn-off – Programmable Fault Limit and Response delay. – ±0.8% VOUT In addition, the device implements an accurate – Accuracy Current Monitoring measurement system to monitor the output voltages, currents and temperatures for individual channels. – ±3°C External Temperature Monitoring In Smart Power Mode Device Information(1) – Programmable UVLO ON/OFF Thresholds PART NUMBER PACKAGE BODY SIZE (NOM) – Programmable Soft-Start Time, Turn-On TPS40428 RHA (40) 6.00 mm × 6.00 mm Delay, and Turn-Off Delay (1) For all available packages, see the orderable addendum at • On-Chip Non-Volatile Memory (NVM) to Store the end of the data sheet. Custom Configurations • 0.6-V Reference Voltage with 0.5% Accuracy from Simplified Application (Dual Output) –40°C to 125°C • Programmable ƒSW from 200 kHz to 1.5 MHz • Supports Pre-biased Output • Differential Remote Sensing • Synchronization to an Extermal Clock • OC/OV/UV/OT Fault Protection • 40-Pin, 6 mm × 6 mm, QFN Package 2 Applications • Wireless Infrastructure • Switcher/Router Networking/Server/Storage 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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